Red Sea: the new oil front shaking the markets

Brent closed at $109.51 a barrel on September 9, 2026, up from $104.47 two days earlier. WTI followed the same trajectory, rising from $94 to $97. This nearly 5% acceleration in 48 hours is not due to a supply surprise: it sanctions the capture of the port of Mocha by the Houthis and the now direct threat to the Bab al-Mandeb strait. The geography of energy risk has changed its nature. It is no longer located in production fields, but in transit corridors.

The Red Sea, a systemic breaking point

The capture of the port of Mocha and strategic islands by the Houthis has caused Suez Canal revenues to fall by 60%. Alternative Saudi export routes, particularly via the Red Sea, are now exposed. This disruption is no longer an isolated incident: it is restructuring flows between Asia and Europe, with a direct impact on freight costs and delivery times. The war with Iran has also damaged the Ras Laffan complex in Qatar, reducing LNG exports from the region. A locked strait, and an entire logistical architecture falters.

Chronic underinvestment amplifies every shock

US diesel has exceeded $6 a gallon, an unprecedented level. Gasoline is approaching $5 as the midterm elections approach. This surge is not solely explained by geopolitics: it reflects a decade of underinvestment in physical supply, limited refinery flexibility, and strained global inventories. Accelerated drawdowns from reserves confirm that the market has reached an inflection point. Some analysts are now talking about diesel between $7 and $9 a gallon if the trend continues. The market is not short of oil; it is short of room for maneuver.

China re-arms its demand as supply weakens

Chinese crude imports are expected to remain at 7.2 million barrels per day in September, extending the recovery initiated since the decade-low in June. This restocking, coupled with diversification of sources — including Russia and Argentina — reduces the room for maneuver for European buyers in an already tight market. Asian demand is not weakening; it is shifting. And it is capturing the volumes that Europe coveted.

Europe pays for its residual dependence on Russian gas

In eight months, the European Union paid 7.28 billion euros to Russia for LNG from the Yamal project, already exceeding the annual estimate of 7.2 billion for 2025. This contradiction between stated objectives and actual flows weighs on the credibility of the European energy strategy. The Netherlands reduced its storage target by 10 points, to 64%, in an attempt to calm wholesale prices. Brussels calls for moderation, but financial flows tell another story.

Critical infrastructure becomes targets

Russian strikes on gas stations in Kyiv, which killed two people, are part of a campaign targeting civilian areas and logistical nodes. At the same time, the shutdown of the Druzhba pipeline in 2026 exposed uncertainty about the Adria pipeline's ability to secure supplies for Slovakia and Hungary. Technical feasibility was only confirmed during the crisis, forcing these countries to draw on their emergency stocks. Energy security is no longer just about markets, but about the ground.

Context

The current configuration results from a triple dynamic initiated since 2022: the fragmentation of global trade routes, the militarization of straits, and the energy transition that has not yet produced the promised volumes. The Strait of Hormuz concentrates about a fifth of the world's oil, and Bab al-Mandeb locks access to Suez. Historically, the oil shocks of 1973 and 1979 revealed the vulnerability of industrialized economies to supply disruptions. The major difference today: strategic stocks are lower, refining capacities are saturated, and global logistics chains are less flexible.

Key players

The Houthis, non-state actors, now have a disproportionate geopolitical lever: controlling Bab al-Mandeb means holding an artery of global trade. Saudi Arabia seeks to secure its alternative export routes, but its options are limited by geography. Russia, despite sanctions, maintains an indispensable supplier position for Europe in LNG and for Asia in crude. China, the world's largest importer, plays diversification and strategic storage. The United States, the largest producer, sees its influence limited by the constraint of its own refining capacities and by internal political pressure on pump prices. The European Union, divided between climate objectives and security of supply, struggles to impose a coherent strategy.

Data and figures

Brent stood at $109.51 a barrel on September 9, compared to $104.47 on September 7, an increase of nearly 5% in two days. Henry Hub natural gas remains contained at $2.81 per million BTU, a sign that tension is concentrated on liquids. US jet fuel jumped from $4.13 to $4.34 a gallon in one day. The fear and greed index stood at 35.11 on September 11, in the fear zone, compared to 42.23 on September 9, reflecting a rapid deterioration in sentiment. In Germany, the IFO business climate index remains stable at 88.8, but Eurozone 10-year sovereign yields fell from 3.50% to 3.43% between September 9 and 10, a sign of a search for safe havens. Projected net debt levels for 2031 remain high: 126.7% of GDP for Italy, 122.8% for Japan, 115.4% for the United States, and 112.6% for France, limiting the fiscal capacity of these economies to cushion a prolonged energy shock.

Analysis of issues

In the short term, volatility is expected to continue, or even intensify, if tensions in Bab al-Mandeb and the Strait of Hormuz persist. European refineries, already under pressure, could reduce their margins or increase their selling prices, fueling inflation. Shipping companies, facing rising insurance costs and longer routes, will pass these surcharges on to consumers. The most exposed sectors are air transport, petrochemicals, and agri-food, which depend on diesel and maritime freight.

In the medium term, three structural dynamics are emerging. First, the acceleration of investments in renewable energies and nuclear power, as illustrated by Google's 13 billion euro investment in Finland for data centers and the reactivation of a nuclear power plant. Second, the partial relocation of energy supply chains, with priority given to security over cost optimization. Finally, increased pressure on the most indebted countries, which have less fiscal room to subsidize energy prices.

Forward-looking assumptions

Scenario 1: Controlled escalation (50% probability). Tensions persist but do not escalate into open conflict in the Strait of Hormuz. Brent fluctuates between $100 and $120. Indicators to watch: frequency of attacks on oil tankers, level of IEA strategic stocks, OPEC+ decisions on quotas.

Scenario 2: Major supply disruption (25% probability). A direct attack on Saudi facilities or a partial closure of Hormuz causes a $20 to $30 shock on Brent. Importing economies enter a technical recession. Indicators to watch: movements of US aircraft carriers, Iranian statements, maritime freight prices.

Scenario 3: Negotiated de-escalation (25% probability). Regional mediation leads to de-escalation in Bab al-Mandeb, allowing a gradual normalization of routes. Brent returns below $95. Indicators to watch: resumption of Suez traffic, decrease in risk premiums on futures contracts, reopening of negotiations on the Iranian nuclear program.

Why it matters

Energy volatility is not an abstract phenomenon reserved for trading floors. It determines the price of fuel at the pump, the cost of heating, the competitiveness of businesses, and the ability of governments to finance their public services. In a context where public debt is reaching historical levels in several major economies, every additional dollar on the barrel reduces budgetary room for maneuver. The question is no longer whether energy markets will be disrupted, but who will pay the bill and for how long. Decisions made in the next six months — on strategic stocks, infrastructure investments, and route diversification — will shape energy security for the next decade.